Hinge.



No. 874,427. PATENTBD 13mm, 19ov. H. PEARsoN.

n HINGE,

' APPLICATION FILED MAY 8, 1907.

y'UNITED sTATEs PATENT oEEroE. N

HENRY PEARSON, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO GEORGE A. DENHAM,

OF BOSTON, MASSACHUSETTS.

HINGE.

Specification of Letters Patent.

Patented Dec. 24, 1907'.l

Application iled May 8. 1907. Serial No. 372.534.

locked in its clutching position when a leaf of the hinge is in proper position to Veffect such locking.

I show my new hinge 1n the accompanyingv drawings wherein:

Figure 1 is a side elevation, partly in section at line 1 1 of Fig. 2 of my new hinge showing it in use and with its clutch-member locked in interlocking position with a cop erating socket. Fig. 2 is a front plan view of the hinge when in the position indicated in Fig. l. Fig. 3 is a view similar to Fig. 1, but showing the parts in inoperative position. Fig. 4 is a top plan view in section at line 4 4 of Fig. l, of the hinge and shows the clutche member in clutching position.

In the drawings, 1 is the lower and 2 the upper hinge-leaf, and .3 the pintle that connects them. A link 4 is pivotally connected at 5 to the leaf 2 and is pivotally connected at 6 to the clutch-member 7 which is pivot ally connected at 8 to leaf 1, the pivotal con nection at 6 being rearward of the pivotal connection at 8 so that when the leaf 2 is swung on pintle 3, it will move link 4 and consequently swing the clutch-member '7 in one direction or the other. In its forward position, the free end of the clutch member is in position to interlock with an exterior part, such as socket I), for example, inpart a. The hinge is mounted on a part, such as a, for example, that is to be interlocked with a. Preferably the coupling-member 7 (the free end of which may be of any desired shape) is provided with an abutment 9 which brings up against link 4 when the coupling-member is swung back into operative position. lThe coupling member is shown in the form of a hook with the rear side of its butt-end eccentric to the pivot at 8 so that the member is swung on pivot 8 by the thrust or pull given link 4, when leaf 2 is moved. Y When leaf 2 is extended in the di- 

